Lift arm for a three-point hitch



FIG. 1 is a left perspective view of a lift arm for a three-point hitch;

FIG. 2 is a right perspective view of the lift arm;

FIG. 3 is a front view of the lift arm;

FIG. 4 is a back view of the lift arm;

FIG. 5 is a top side view of the lift arm;

FIG. 6 is a bottom side view of the lift arm;

FIG. 7 is a left view of the lift arm; and,

FIG. 8 is a right view of the lift arm.

The broken lines in the drawing depict portions of the lift arm for a three-point hitch that form no part of the claimed design. 

CLAIM The ornamental design for a lift arm for a three-point hitch, substantially as shown and described. 